Year | Value | 2022 | 181.61993197778 | 2021 | 166.21889451663 | 2020 | 155.01725023857 | 2019 | 151.36166776775 | 2018 | 148.46399471482 | 2017 | 142.38420318579 | 2016 | 134.84487019501 | 2015 | 126.73664635788 | 2014 | 120.94986420025 | 2013 | 117.52183806797 | 2012 | 113.81793046074 | 2011 | 104.52421150505 | 2010 | 100 | 2009 | 96.236144755193 | 2008 | 91.014583180406 | 2007 | 86.797450390271 | 2006 | 83.717487582275 | 2005 | 81.826078445766 | 2004 | 80.710301651673 | 2003 | 77.634574831113 | 2002 | 74.456079095308 | 2001 | 73.414835077309 | 2000 | 70.438127995293 | 1999 | 70.200035316783 | 1998 | 68.390750400365 | 1997 | 65.164978627005 | 1996 | 61.631332173507 | 1995 | 51.931085346603 | 1994 | 40.014821087503 | 1993 | 31.007786031487 | 1992 | 25.723993810749 | 1991 | 19.536766053213 | 1990 | 15.51936355384 | 1989 | 13.303923172512 | 1988 | 12.171447707432 | 1987 | 11.492087771545 | 1986 | 10.696158695368 | 1985 | 9.5185596921102 | 1984 | 8.6154622127625 | 1983 | 7.9686914988925 | 1982 | 7.5199629803549 | 1981 | 7.0581808204675 | 1980 | 6.1560250384465 | 1979 | 5.6210256793261 | 1978 | 5.0481332083662 | 1977 | 4.2954090200256 | 1976 | 3.8355536285299 | 1975 | 3.5050058052235 | 1974 | 3.2384695098622 | 1973 | 3.093105538332 | 1972 | 2.9132738209856 | 1971 | 2.8105128396448 | 1970 | 2.7385801527063 | 1969 | 2.5690245335197 |
|